/* iReadPrice Course styles. Matches site design tokens. */
:root {
  color-scheme: light dark;
  --bg: #f3f2ed;
  --paper: #fbfaf6;
  --ink: #111712;
  --muted: #526057;
  --rule: #c9ccc4;
  --soft: #e4e4dc;
  --green: #0f6e45;
  --green-2: #dceade;
  --red: #a23f34;
  --red-2: #f0dfdb;
  --amber: #8a6412;
  --amber-2: #eee6cf;
  --black: #101511;
  --white: #fffef9;
  --shadow: 0 18px 55px rgba(15, 22, 17, .08);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c100d;
    --paper: #121713;
    --ink: #eceee4;
    --muted: #9aa79c;
    --rule: #2b332c;
    --soft: #1d241e;
    --green: #4cc38a;
    --green-2: #16281e;
    --red: #e08073;
    --red-2: #2a1a17;
    --amber: #d9a83e;
    --amber-2: #2a2314;
    --shadow: 0 18px 55px rgba(0, 0, 0, .35);
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.page { max-width: 860px; margin: 0 auto; padding: 0 22px 90px; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: 12px;
  color: var(--amber);
  font-weight: 700;
  margin: 34px 0 10px;
}
h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(34px, 7vw, 52px);
  line-height: 1.08;
  letter-spacing: -.02em;
  margin: 0 0 12px;
}
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 26px;
  letter-spacing: -.01em;
  margin: 44px 0 14px;
}
h3 { font-size: 19px; margin: 0 0 8px; }
.lede { color: var(--muted); font-size: 17px; margin: 0 0 8px; }
.fine { color: var(--muted); font-size: 13px; }
.crumb { color: var(--muted); font-size: 13px; text-decoration: none; border-bottom: 1px solid var(--rule); }
.crumb:hover { color: var(--amber); border-color: var(--amber); }

/* header */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; border-bottom: 1px solid var(--rule);
}
.brand { font-weight: 800; letter-spacing: -.02em; text-decoration: none; color: var(--ink); font-size: 19px; }
.brand em { font-style: normal; color: var(--amber); }
.site-header nav { display: flex; gap: 20px; }
.site-header nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.site-header nav a:hover { color: var(--ink); }

/* buttons */
.button {
  display: inline-block;
  background: var(--ink); color: var(--bg);
  border: 1px solid var(--ink);
  padding: 13px 26px; border-radius: 999px;
  font-size: 15px; font-weight: 600; cursor: pointer; text-decoration: none;
}
.button:hover { opacity: .88; }
.button.small { padding: 9px 20px; font-size: 14px; }
.button.secondary { background: transparent; color: var(--ink); }
.button:disabled { opacity: .5; cursor: default; }

/* rank card */
.rank-card {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 18px;
  padding: 28px;
  margin: 10px 0 40px;
  box-shadow: var(--shadow);
}
.rank-card h2 { margin: 0 0 6px; font-size: 34px; }
.xp-row { display: flex; justify-content: space-between; color: var(--muted); font-size: 14px; margin-bottom: 8px; }
.xp-bar { height: 10px; background: var(--soft); border-radius: 999px; overflow: hidden; }
.xp-fill { height: 100%; background: linear-gradient(90deg, var(--amber), #e8c35a); border-radius: 999px; transition: width .5s ease; }
.rank-ladder { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-top: 22px; }
.rank-step {
  border: 1px solid var(--rule); border-radius: 12px; padding: 10px 8px;
  text-align: center; opacity: .55;
}
.rank-step.earned { opacity: 1; border-color: var(--amber); background: var(--amber-2); }
.rank-step b { display: block; font-size: 12px; }
.rank-step span { font-size: 11px; color: var(--muted); }

/* module cards */
.module-grid { display: grid; gap: 16px; }
.module-card {
  display: grid; grid-template-columns: 54px 1fr; gap: 18px;
  background: var(--paper); border: 1px solid var(--rule); border-radius: 16px;
  padding: 22px; text-decoration: none; color: var(--ink);
}
.module-card.open:hover { border-color: var(--amber); }
.module-card.done { border-color: var(--green); }
.module-card.locked { opacity: .55; cursor: not-allowed; }
.module-num {
  width: 54px; height: 54px; border-radius: 50%;
  background: var(--ink); color: var(--bg);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 20px;
}
.module-card.done .module-num { background: var(--green); }
.module-card.locked .module-num { background: var(--muted); }
.module-card p { color: var(--muted); margin: 6px 0; font-size: 14px; }
.module-status { font-size: 13px !important; font-weight: 600; }
.module-card.done .module-status { color: var(--green); }

/* lessons */
.lesson {
  background: var(--paper); border: 1px solid var(--rule);
  border-radius: 16px; padding: 24px; margin: 0 0 16px;
}
.lesson.done { border-color: var(--green); }
.lesson-body p { margin: 10px 0; }
.lesson-body p:first-child { margin-top: 12px; }
.lesson-status { color: var(--green); font-weight: 600; font-size: 14px; margin: 14px 0 0; }

/* quiz */
.locked-note {
  background: var(--amber-2); border: 1px solid var(--amber);
  border-radius: 12px; padding: 16px 20px; font-size: 14px;
}
.best-line { font-size: 15px; }
.quiz-progress { color: var(--muted); font-size: 13px; letter-spacing: .06em; margin: 18px 0 6px; }
.quiz-q { font-size: 21px; margin-bottom: 16px; }
.quiz-options { display: grid; gap: 10px; }
.quiz-opt {
  text-align: left; background: var(--paper); color: var(--ink);
  border: 1px solid var(--rule); border-radius: 12px;
  padding: 14px 18px; font-size: 15px; cursor: pointer;
}
.quiz-opt:hover:not(:disabled) { border-color: var(--amber); }
.quiz-opt.correct { border-color: var(--green); background: var(--green-2); }
.quiz-opt.wrong { border-color: var(--red); background: var(--red-2); }
.quiz-opt:disabled { cursor: default; opacity: .85; }
.quiz-feedback { margin-top: 18px; background: var(--paper); border: 1px solid var(--rule); border-radius: 12px; padding: 18px 20px; }
.quiz-feedback .right { color: var(--green); font-weight: 700; margin: 0 0 6px; }
.quiz-feedback .wrong-text { color: var(--red); font-weight: 700; margin: 0 0 6px; }
.quiz-feedback p { margin: 8px 0; }
.quiz-results { text-align: center; background: var(--paper); border: 1px solid var(--rule); border-radius: 16px; padding: 34px 24px; margin-top: 18px; }
.quiz-results h3 { font-size: 52px; margin: 0; font-family: Georgia, serif; }
.xp-gain { color: var(--amber); font-weight: 800; font-size: 18px; }
.passed { color: var(--green); font-weight: 700; }
.failed { color: var(--red); font-weight: 700; }
.quiz-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 18px; }

/* xp flash */
#xp-flash {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: var(--bg); font-weight: 700;
  padding: 12px 24px; border-radius: 999px; opacity: 0; pointer-events: none;
  transition: opacity .3s ease, transform .3s ease; z-index: 50;
}
#xp-flash.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.reset-wrap { margin-top: 44px; text-align: center; }
.link-quiet { background: none; border: none; color: var(--muted); font-size: 13px; cursor: pointer; text-decoration: underline; }

footer { margin-top: 70px; padding-top: 24px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 13px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
footer nav { display: flex; gap: 16px; }
footer a { color: var(--muted); text-decoration: none; }

@media (max-width: 640px) {
  .rank-ladder { grid-template-columns: repeat(2, 1fr); }
  .rank-step:last-child { grid-column: span 2; }
  .module-card { grid-template-columns: 44px 1fr; padding: 18px; }
  .module-num { width: 44px; height: 44px; font-size: 17px; }
  .site-header nav { gap: 14px; }
}